Solid isotopy allows us to draw conclusions about the origin of a sample and the source of its constituents. We analyze C, N, and S isotopy (δ13C, δ15N, δ34S) in powdered solid samples (rock, ore, plants) and C and O isotopy in carbonates. The anion isotopes (phosphates and sulphates) allows the identification of sources as well as mobilization and transformation processes in the subsurface. This is especially true for oxygen isotopy in sulfate and phosphate. In addition, we analyze stable isotopes (δ2H, δ18O) in water, which provides information on, for example, the formation conditions of groundwater, the origin of precipitation water, evaporation processes, and rock-water interactions.

Knowledge of the isotope ratios of various elements in solids helps to draw  conclusions about formation conditions and to gain insight into important aspects of the biogeochemical cycle. The S isotope ratios in sulfides, for example, reflect whether they were formed microbiologically or under pure inorganic conditions. Furthermore, the source of some elements can be deduced from related isotope ratios. For example, from the C isotope value of organic carbon in sediments we can identify the C source (C3 vs. C4, marine vs. terrestrial source). Environmental and climatic conditions can be reconstructed from the C and O isotope ratios, for example in stalagmites,

We analyze C, N and S isotopes (δ¹³C, δ¹⁵N, δ³⁴S) in pulverized solid samples (rock, ore, plants) and C and O isotopes in carbonates. Depending on the question, a pre-treatment of the samples is necessary.

We will be pleased to advise you in order to determine the appropriate analysis for your problem.

The oxygen isotopy in sulfate and phosphate can be used both to identify their source and to understand mobilization and transformation processes in the subsurface. The oxygen isotopy in sulfate and water can be used in combination to calculate temperatures in a reservoir (geothermometer).

We analyze the O-isotopy in sulfate and phosphate. Precipitation of the respective anion in pure form is a prerequisite for successful application.

We are happy to advise you to determine the appropriate analysis for your problem.

The stable isotopic signature of water allows characterization of the water cycle at local and global scales. For example, analysis of water isotopy (δ2H, δ18O) provides information on the formation conditions of groundwater, the origin of precipitation water, evaporation processes, rock-water interactions, etc.

We determine δ2H and δ18O signatures directly from water samples or after distillation from thermal waters.

Isotope method